IBM Support

Security Bulletin: Code execution vulnerability in WebSphere Application Server (CVE-2016-5983).

Security Bulletin


Summary

There is a potential code execution vulnerability in WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2016-5983
DESCRIPTION:
IBM WebSphere Application Server could allow remote attackers to execute arbitrary Java code with a serialized object from untrusted sources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116468 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM WebSphere Application Server:

  • Liberty
  • Version 9.0
  • Version 8.5.5
  • Version 8.0
  • Version 7.0

Remediation/Fixes

The recommended solution is to apply the interim fix, Fix Pack or PTF containing APAR PI62375 or PI70737 for each named product as soon as practical. Note: There was an issue with PI62375 for Traditional WebSphere Application Server. If you are using IBM Connections Desktop Client Plugin failures related to HTTP client may occur. If you have already downloaded the interim fix for PI62375 and have not had any issues you do not need to replace it with the new interim fixes for PI70737. This was an interim fix only issue relating to certain HTTP clients.

For WebSphere Application Server and WebSphere Application Server Hypervisor Edition:

For Liberty:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI62375
--OR--
· Apply Liberty Fix Pack 16.0.0.4 or later.

For V9.0.0.0 through 9.0.0.1:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI70737
--OR--
· Apply Fix Pack 9.0.0.2 or later.

For V8.5.0.0 through 8.5.5.10 Full Profile:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI70737

--OR--
· Apply Fix Pack 8.5.5.11 or later.

For V8.0.0.0 through 8.0.0.12:
· Upgrade to a minimal fix pack levels as required by interim fix and then apply Interim Fix PI70737

--OR--
· Apply Fix Pack 8.0.0.13 or later.

For V7.0.0.0 through 7.0.0.41:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI70737

--OR--
· Apply Fix Pack 7.0.0.43 or later.

Get Notified about Future Security Bulletins

Important note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

Vulnerability reported to IBM by Federico Dotta and Maurizio Agazzini at Mediaservice.net S.r.l.

Change History

22 September 2016: original document published
18 October 2016: updated with new ifixes due to issue with IBM Connections Desktop Client Plugin

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Related information

A Japanese translation is available

Cross reference information
Segment Product Component Platform Version Edition
Application Servers WebSphere Application Server Hypervisor Edition
Application Servers WebSphere Application Server Liberty Core

Document information

More support for: WebSphere Application Server
General

Software version: 7.0, 8.0, 8.5, 8.5.5, 9.0.0.0

Operating system(s): AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS

Software edition: Base, Developer, Express, Liberty, Network Deployment

Reference #: 1990060

Modified date: 18 October 2016